pmem2_source_get_fd - Man Page
reads file descriptor of the data source
Synopsis
#include <libpmem2.h> int pmem2_source_get_fd(const struct pmem2_source *src, int *fd);
Description
The pmem2_source_get_fd() function reads the file descriptor of *struct pmem2_source** object describing the data source and returns it by fd parameter.
This function is Linux only, on Windows use pmem2_source_get_handle(3).
Return Value
The pmem2_source_get_fd() function returns 0 on success or a negative error code on failure.
Errors
The pmem2_source_get_fd() can fail with the following errors:
- PMEM2_E_FILE_DESCRIPTOR_NOT_SET - in case of an instance of struct pmem2_source that does not come from source type that support file descriptors, eg. anonymous data source.
See Also
pmem2_source_get_handle(3), libpmem2(7) and <https://pmem.io>
Referenced By
2022-08-25 PMDK - pmem2 API version 1.0 PMDK Programmer's Manual